#include <iostream>
#include <sstream>
#include <string>
using namespace std;

void test(){
int num =123;
int num2 = 456;
ostringstream oss;
oss << num << num2 << endl;
cout << oss.str();
cout << oss.str();

}

int main(int atgc, char * argv[])
{
    test();
    return 0;
}

